A new real estate brokerage has been hired to market 45,000 square feet of office space at The Launch at Hingham Shipyard. The office component has been the slowest segment to fill up at the 1.2-million-square-foot waterfront complex, which includes retailers, restaurants, condos and a movie theater.

The Boston office of Jones Lang LaSalle will be the exclusive broker for the three-story office building, shipyard owners Samuels & Associates of Boston announced Wednesday.

Built in 2009, the office space can be subdivided into suites ranging from 2,500 to 23,500 square feet.

Tom Bloch, chief operating officer of Samuels & Associates, said Jones Lang LaSalle has an aggressive outreach plan to find tenants for the office space. He said the combination of the waterfront location and access to the Boston commuter ferry is a selling point to prospective tenants.

The retail portion of the shipyard is anchored by Old Navy, Bed Bath & Beyond and Fresh Market. A 12,000-square-foot Trader Joe’s specialty grocery store also is scheduled to open later this year.

Six restaurants currently operate at the Launch, and two others, Union Fish and Stonehearth Pizza, will open this year.

Representatives from Stonehearth Pizza and Samuels & Associates were not available for comment Wednesday.

Paul Wahlberg, owner of the Wahlburgers and Alma Nove restaurants at the shipyard, had planned to open a restaurant called Pizzeria Diciannove in the former Pizzapalooza space. Those plans were dropped earlier this year after Wahlberg sued a former business partner and accused him of mismanaging the restaurants’ finances. The partner, Edward St. Croix, filed a countersuit accusing Walhberg of misusing restaurant money and failing to pay him for past work.

Residents began moving into the 26-unit Moorings condo development at the shipyard last fall. The project had been delayed by the real estate downturn.